Screen-Analysis Based Device Security

1. A method implemented by one or more processors, the method comprising: identifying a user profile that corresponds to a user and that is active for an electronic device; determining whether current activity of the electronic device, while the user profile is active for the electronic device, matches the user profile, wherein determining whether the current activity of the electronic device matches the user profile comprises: processing, using a classification model, feature vectors that are generated based on content that is displayed on a screen of the electronic device during the current activity of the electronic device to determine whether the feature vectors corresponding to the content that is displayed on the screen of the electronic device during the current activity of the electronic device match the user profile; and in response to determining the feature vectors corresponding to the current activity of the electronic device do not match the user profile: determining whether the current activity of the electronic device, while the user profile is active for the electronic device, matches an additional user profile, of a plurality of additional user profiles, the additional user profile corresponding to an additional user; and in response to determining the current activity of the electronic device matches the additional user profile: initiating a profile switch, to the additional user profile, at the electronic device.

2. The method of claim 1, wherein determining whether the current activity of the electronic device matches the additional user profile comprises: processing, using the classification model, the feature vectors corresponding to the current activity of the electronic device to determine whether the feature vectors corresponding to the current activity of the electronic device match the additional user profile.

3. The method of claim 1, further comprising: in response to determining the feature vectors corresponding to the current activity of the electronic device do not match the additional user profile: determining whether the current activity of the electronic device, while the user profile is active for the electronic device, matches a further additional user profile, of the plurality of additional user profiles, the further additional user profile corresponding to a further additional user; and in response to determining the current activity of the electronic device matches the further additional user profile: initiating the profile switch, to the further additional user profile, at the electronic device.

4. The method of claim 3, wherein determining whether the current activity of the electronic device matches the further additional user profile comprises: processing, using the classification model, the feature vectors corresponding to the current activity of the electronic device to determine whether the feature vectors corresponding to the current activity of the electronic device match the further additional user profile.

5. The method of claim 1, wherein determining whether the current activity of the electronic device matches the user profile is in response to determining that the current activity at the electronic device corresponds to outlier activity for the user profile.

6. The method of claim 1, wherein initiating the profile switch at the electronic device comprises: automatically signing out of the user profile to deactivate the user profile at the electronic device; and automatically signing in to the additional user profile to activate the additional user profile at the electronic device.

7. The method of claim 1, wherein initiating the profile switch at the electronic device comprises: automatically signing out of the user profile to deactivate the user profile at the electronic device; and causing a sign-in user interface to be visually rendered at the electronic device to enable the additional user to sign-in to the additional user profile.

8. The method of claim 7, further comprising: in response to visually rendering the sign-in user interface at the electronic device: receiving, at the electronic device, credentials to sign-in to the additional user profile; and signing in to the additional user profile based on the credentials.

9. The method of claim 1, wherein initiating the profile switch at the electronic device comprises: causing a prompt to be visually rendered at the electronic device to request permission to switch to the additional user profile associated with the additional user.

10. The method of claim 9, further comprising: in response to visually rendering the prompt at the electronic device: receiving, at the electronic device, user input to permit switching to the additional user profile.

11. The method of claim 1, wherein generating the feature vectors based on the content that is displayed on the screen of the electronic device comprises: processing at least a portion of the content that is displayed on the screen of the electronic device; identifying one or more features included in the content that is displayed on the screen of the electronic device; and generating the feature vectors using one or more of the features included in the content that is displayed on the screen of the electronic device.

12. A system comprising: at least one processor; and at least one memory storing instructions that, when executed, cause the at least one processor to: identify a user profile that corresponds to a user and that is active for an electronic device; determine whether current activity of the electronic device, while the user profile is active for the electronic device, matches the user profile, wherein the instructions to determine whether the current activity of the electronic device matches the user associated with the user profile comprise instructions to: process, using a classification model, feature vectors that are generated based on content that is displayed on a screen of the electronic device during the current activity of the electronic device to determine whether the feature vectors corresponding to the content that is displayed on the screen of the electronic device during the current activity of the electronic device match the user profile; in response to determining the feature vectors corresponding to the current activity of the electronic device do not match the user profile: determine whether the current activity of the electronic device, while the user profile is active for the electronic device, matches an additional user profile, of a plurality of additional user profiles, the additional user profile corresponding to an additional user; and in response to determining the current activity of the electronic device matches the additional user profile: initiate a profile switch, to the additional user profile, at the electronic device.

13. The system of claim 12, wherein the instructions to determine whether the current activity of the electronic device matches the additional user profile comprise instructions to: process, using the classification model, the feature vectors corresponding to the current activity of the electronic device to determine whether the feature vectors corresponding to the current activity of the electronic device match the additional user profile.

14. The system of claim 12, wherein the instructions further comprise instructions to: in response to determining the feature vectors corresponding to the current activity of the electronic device do not match the additional user profile: determine whether the current activity of the electronic device, while the user profile is active for the electronic device, matches a further additional user profile, of the plurality of additional user profiles, the further additional user profile corresponding to a further additional user; and in response to determining the current activity of the electronic device matches the further additional user profile: initiate the profile switch, to the further additional user profile, at the electronic device.

15. The system of claim 14, wherein the instructions to determine whether the current activity of the electronic device matches the further additional user profile comprise instructions to: process, using the classification model, the feature vectors corresponding to the current activity of the electronic device to determine whether the feature vectors corresponding to the current activity of the electronic device match the further additional user profile.

16. The system of claim 12, wherein determining whether the current activity of the electronic device matches the user profile is in response to determining that the current activity at the electronic device corresponds to outlier activity for the user profile.

17. The system of claim 12, wherein the instructions to initiate the profile switch at the electronic device comprise instructions to: automatically sign-in of the user profile to deactivate the user profile at the electronic device; and automatically sign-in to the additional user profile to activate the additional user profile at the electronic device.

18. The system of claim 12, wherein the instructions to initiate the profile switch at the electronic device comprise instructions to: automatically sign out of the user profile to deactivate the user profile at the electronic device; and cause a sign-in user interface to be visually rendered at the electronic device to enable the additional user to sign-in to the additional user profile.

19. The system of claim 12, wherein the instructions to initiate the profile switch at the electronic device comprise instructions to: cause a prompt to be visually rendered at the electronic device to request permission to switch to the additional user profile associated with the additional user.

20. A non-transitory computer-readable storage medium storing instructions that, when executed, cause at least one processor to execute the instructions, the instructions causing the at least one processor to: identify a user profile that corresponds to a user and that is active for an electronic device; determine whether current activity of the electronic device, while the user profile is active for the electronic device, matches the user profile, wherein the instructions to determine whether the current activity of the electronic device matches the user profile comprise instructions to: process, using a classification model, feature vectors that are generated based on content that is displayed on a screen of the electronic device during the current activity of the electronic device to determine whether the feature vectors corresponding to the content that is displayed on the screen of the electronic device during the current activity of the electronic device match the user profile; in response to determining the feature vectors corresponding to the current activity of the electronic device do not match the user profile: determine whether the current activity of the electronic device, while the user profile is active for the electronic device, matches an additional user profile, of a plurality of additional user profiles, the additional user profile corresponding to an additional user; and in response to determining the current activity of the electronic device matches the additional user profile: initiating a profile switch, to the additional user profile, at the electronic device.